3.15 Surface inlets 3.15.1 Surface inlets may be used where the construction of surface drains to remove the ponded water is not feasible or practical. ... referenced to existing physical features so that any segment can be located to facilitate maintenance and repair. ... Grade-stake elevations should always be determined with an engineera#39;s level or transit on grades less than 1%. ... Tile should be bedded with ordinary care in an earth foundation shaped to fit the lower part of the tile.
|Author||:||American Society of Agricultural Engineers|